CN114687686B - Drilling mud formula and automatic mud circulation purification device - Google Patents
Drilling mud formula and automatic mud circulation purification device Download PDFInfo
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- CN114687686B CN114687686B CN202210326789.4A CN202210326789A CN114687686B CN 114687686 B CN114687686 B CN 114687686B CN 202210326789 A CN202210326789 A CN 202210326789A CN 114687686 B CN114687686 B CN 114687686B
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- 238000005553 drilling Methods 0.000 title claims abstract description 39
- 238000000746 purification Methods 0.000 title description 11
- 230000007246 mechanism Effects 0.000 claims description 30
- 230000033001 locomotion Effects 0.000 claims description 25
- 239000002245 particle Substances 0.000 claims description 12
- 238000001179 sorption measurement Methods 0.000 claims description 8
- 238000002955 isolation Methods 0.000 claims description 7
- 239000002002 slurry Substances 0.000 abstract description 76
- 239000004576 sand Substances 0.000 abstract description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 17
- 229920002401 polyacrylamide Polymers 0.000 abstract description 12
- 239000002994 raw material Substances 0.000 abstract description 11
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 abstract description 10
- 239000000440 bentonite Substances 0.000 abstract description 10
- 229910000278 bentonite Inorganic materials 0.000 abstract description 10
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 abstract description 10
- DPXJVFZANSGRMM-UHFFFAOYSA-N acetic acid;2,3,4,5,6-pentahydroxyhexanal;sodium Chemical compound [Na].CC(O)=O.OCC(O)C(O)C(O)C(O)C=O DPXJVFZANSGRMM-UHFFFAOYSA-N 0.000 abstract description 8
- 229910000604 Ferrochrome Inorganic materials 0.000 abstract description 7
- 239000010425 asbestos Substances 0.000 abstract description 7
- 229910052895 riebeckite Inorganic materials 0.000 abstract description 7
- 239000002689 soil Substances 0.000 abstract description 6
- 229920001732 Lignosulfonate Polymers 0.000 abstract description 5
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 abstract description 5
- 229920001938 Vegetable gum Polymers 0.000 abstract description 5
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 abstract description 5
- 239000010428 baryte Substances 0.000 abstract description 5
- 229910052601 baryte Inorganic materials 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 5
- 229910052700 potassium Inorganic materials 0.000 abstract description 5
- 239000011591 potassium Substances 0.000 abstract description 5
- 239000000843 powder Substances 0.000 abstract description 5
- 229910000029 sodium carbonate Inorganic materials 0.000 abstract description 5
- 159000000000 sodium salts Chemical class 0.000 abstract description 5
- 238000002360 preparation method Methods 0.000 abstract description 4
- 239000001768 carboxy methyl cellulose Substances 0.000 abstract description 3
- 235000019812 sodium carboxymethyl cellulose Nutrition 0.000 abstract description 3
- 229920001027 sodium carboxymethylcellulose Polymers 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 11
- 238000003756 stirring Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 7
- 239000000463 material Substances 0.000 description 6
- 238000004062 sedimentation Methods 0.000 description 5
- 238000005520 cutting process Methods 0.000 description 4
- -1 dry sawdust Substances 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 238000001914 filtration Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000007790 solid phase Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 230000033558 biomineral tissue development Effects 0.000 description 2
- 230000001143 conditioned effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- YDEXUEFDPVHGHE-GGMCWBHBSA-L disodium;(2r)-3-(2-hydroxy-3-methoxyphenyl)-2-[2-methoxy-4-(3-sulfonatopropyl)phenoxy]propane-1-sulfonate Chemical compound [Na+].[Na+].COC1=CC=CC(C[C@H](CS([O-])(=O)=O)OC=2C(=CC(CCCS([O-])(=O)=O)=CC=2)OC)=C1O YDEXUEFDPVHGHE-GGMCWBHBSA-L 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 238000009472 formulation Methods 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 239000003673 groundwater Substances 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- 230000001502 supplementing effect Effects 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 230000009974 thixotropic effect Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000009545 invasion Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004537 pulping Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
- E21B21/01—Arrangements for handling drilling fluids or cuttings outside the borehole, e.g. mud boxes
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
- E21B21/06—Arrangements for treating drilling fluids outside the borehole
- E21B21/062—Arrangements for treating drilling fluids outside the borehole by mixing components
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
- E21B21/06—Arrangements for treating drilling fluids outside the borehole
- E21B21/063—Arrangements for treating drilling fluids outside the borehole by separating components
- E21B21/065—Separating solids from drilling fluids
- E21B21/066—Separating solids from drilling fluids with further treatment of the solids, e.g. for disposal
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
- E21B21/06—Arrangements for treating drilling fluids outside the borehole
- E21B21/068—Arrangements for treating drilling fluids outside the borehole using chemical treatment
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Fluid Mechanics (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Mechanical Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Chemical & Material Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtration Of Liquid (AREA)
- Treatment Of Sludge (AREA)
Abstract
The invention discloses a drilling mud formula and an automatic mud circulation purifying device, and relates to the technical field of drilling mud; the slurry preparation method specifically comprises the steps of preparing slurry raw materials, wherein the prepared slurry raw materials comprise the following components in percentage: 1000 parts of clear water, 20 parts of bentonite, 4 parts of polyacrylamide, 4 parts of vegetable gum, 6 parts of potassium humate, 3 parts of carboxymethyl cellulose sodium salt, 3 parts of ferrochrome lignin sulfonate sodium salt, 4 parts of sodium carbonate, 4 parts of barite fine powder, 3 parts of dry sawdust, 4 parts of asbestos and 5 parts of polyacrylamide flocculant. The invention has the advantages of low relative density, low viscosity, small sand amount, small water loss, thin mud skin, strong stability, strong wall fixing capability, small drilling tool rotation resistance, high drilling rate, large slurry making capability and the like by selecting high-quality bentonite; and the viscosity of slurry can be increased by using sodium carboxymethyl cellulose, so that a film is formed on the surface of a soil layer, the wall of the hole is prevented from peeling off, and the effect of reducing water loss is achieved.
Description
Technical Field
The invention relates to the technical field of drilling mud, in particular to a drilling mud formula and an automatic mud circulation purifying device.
Background
The hydrologic well drilling is one of the important means for detecting and exploiting underground water resources, and has important significance for sociality construction and modification of nature. In recent years, with the acceleration of industrialization and urbanization progress of Shandong provinces, the water consumption of Shandong provinces is increased year by year, so that the underground water resource needs to be developed by relying on hydrodrilling to solve the problems; however, a great deal of development utilizes groundwater resources, resulting in annual lowering of groundwater levels, and the deeper the well is built, the more complex it is to drill into the formation. Therefore, not only a large number of new drilling technologies and new methods are required to be developed, but also the new technologies and the new methods are required to be popularized and applied to actual engineering in time.
In the current hydrogeological well drilling construction process, the slurry returned to the ground from the bottom of the well contains a large amount of rock scraps and sand grains, the solid phase particles in the slurry can only be slightly reduced through manual sand bailing, a slurry tank and natural sedimentation in the sedimentation tank, and a considerable part of the rock scraps and sand grains enter a drilling pump along with the slurry when the slurry is continuously used and are sent to the bottom of the well again, so that the service lives of vulnerable parts and a drill bit of the drilling pump are greatly shortened, the drilling rate is obviously reduced, and even a drill rod is blocked in the drilling process; in addition, as the mud flows through a mud pit and a sedimentation pit below the ground for recycling, in the recycling process, the invasion of harmful substances in the mud to surrounding soil is difficult to avoid, and the environmental protection construction is not achieved.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides a drilling mud formula and an automatic mud circulation purifying device.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the drilling mud formula and the automatic mud circulation purifying device comprise a prepared mud raw material, wherein the prepared mud raw material comprises the following components in percentage by weight: 1000 parts of clear water, 20 parts of bentonite, 4 parts of polyacrylamide, 4 parts of vegetable gum, 6 parts of potassium humate, 3 parts of carboxymethyl cellulose sodium salt, 3 parts of ferrochrome lignin sulfonate sodium salt, 4 parts of sodium carbonate, 4 parts of barite fine powder, 3 parts of dry sawdust, 4 parts of asbestos and 5 parts of polyacrylamide flocculant.
Preferably: the calculation formula of the raw material consumption of the modulated slurry is as follows:
M=Vρ 1 =（ρ 2 -ρ 3 ）/（ρ 1 -ρ 2 ）-ρ 1 。
further: the preparation method of the slurry comprises the following steps:
s1: pouring 80% clear water of the volume of a stirring barrel in proportioning stirring equipment, starting proportioning stirring equipment, and sequentially pouring bentonite, polyacrylamide, vegetable gum, potassium humate, carboxymethyl cellulose sodium salt, ferrochrome lignin sodium sulfonate, sodium carbonate, barite fine powder, dry sawdust, asbestos and polyacrylamide flocculant during the period, wherein the stirring time is 40-50 mm;
s2: placing the stirred slurry into a large slurry tank for standby, then, repeating the operation to prepare slurry, and pouring the prepared slurry into the large slurry tank for drilling circulation;
s3: in the repeated slurry preparation process, continuously supplementing fresh slurry into a large slurry pool according to the viscosity change of the on-site slurry;
s4: with the increment of the circulation times of the slurry, the whole large slurry pool is replaced and reconstituted according to the limit value of the percentage of sand content;
s5: in the slurry circulation process, slurry in the large slurry tank is led into automatic slurry circulation purifying equipment, a slurry outlet is formed in one side of the large slurry tank, a sand sedimentation tank is arranged, and personnel are arranged to clean sand grains and drill cuttings at regular time.
Based on the scheme: the limit value of the percentage of sand content is 4%.
The utility model provides an automatic change mud circulation purifier of drilling mud, includes end bucket, just straining case and main straining barrel, and end bucket is connected with the bottom of main straining barrel through the screw thread, just straining the case and be connected with end bucket bottom outer wall through the bolt, the bottom inner wall of main straining barrel is provided with the isolation bucket, and is provided with arc reciprocating mechanism and circular motion mechanism in end bucket and the main straining barrel respectively, and the swing end of arc reciprocating mechanism is provided with the rotating end of two L type filter plate circular motion mechanisms and is provided with the granule and adsorb the subassembly, arc reciprocating mechanism and circular motion mechanism's drive end is connected through tooth meshing subassembly.
As a further scheme of the invention: the outer wall of one side of the main filter vat is connected with the primary filter tank through a material guiding pipe, and the outer wall of one side of the primary filter tank is provided with a material feeding pipe.
Meanwhile, the circular motion mechanism comprises a sliding rod, a sliding block, a semicircular mounting plate, an L-shaped guide plate, a connecting shaft and a rotating plate;
the two ends of the sliding rod are respectively arranged on the inner walls of the two sides of the top of the main filter vat;
the sliding block is connected to the outer surface of the sliding rod in a sliding manner;
the L-shaped guide plate is connected to the bottom of the sliding block through a rotating shaft;
the connecting shaft is arranged in the middle of the bottom of the L-shaped guide plate.
As a preferred embodiment of the present invention: the semicircular mounting plate is arranged at the bottom of one end of the L-shaped guide plate, and the particle adsorption component is connected with the bottom of the semicircular mounting plate through a bolt;
the rotating plate is arranged on the circumference of the bottom of the connecting shaft, one end of the rotating plate is provided with a guide connecting shaft, and the circumference of the guide connecting shaft is fixed with a fixing plate through a bearing.
Meanwhile, the arc-shaped reciprocating mechanism comprises a U-shaped plate, a servo motor, a swinging plate, a linkage plate, internal teeth, driving teeth, external teeth, guide holes and incomplete teeth;
the U-shaped plate is arranged on the outer wall of the bottom of the fixed plate;
the servo motor is fixed on the outer wall of one side of the U-shaped plate through the support plate;
incomplete teeth, which are connected with the output end of the servo motor by threads, and the circumference of the output end of the servo motor is provided with a guide ring by threads;
the linkage plate is connected to the circumference of the guide ring in a sliding way through the guide hole;
two rows of internal teeth which are welded on the inner walls of the top and bottom of the linkage plate, and the incomplete teeth are meshed with the two rows of internal teeth;
the output end of the servo motor is provided with a mounting shaft, the swinging plate is arranged at the end part of the mounting shaft, two sides of the bottom of the swinging plate are connected with two L-shaped filter plates through torsion springs, the two L-shaped filter plates are arranged in the primary filter box, the outer wall of the top of the primary filter box is provided with a chute, and the L-shaped filter plates and the chute form sliding fit;
external teeth, more than three external teeth are welded on the outer wall of the bottom of the linkage plate;
the driving teeth are rotationally connected to the bottom of the U-shaped plate through the rotating rod and are meshed with the external teeth.
As a more preferable scheme of the invention: the outer wall of the bottom of the guide connecting shaft is provided with a main gear, the end part of the installation shaft is provided with a secondary gear, and the main gear and the secondary gear are meshed with each other.
The beneficial effects of the invention are as follows:
1. the drilling mud formula and the automatic mud circulation purifying device have the advantages that high-quality bentonite is selected, so that the slurry has the advantages of low relative density, low viscosity, small sand content, small water loss, thin mud skin, high stability, high wall fixing capacity, small drilling tool rotation resistance, high drilling rate, high slurry making capacity and the like; and the viscosity of slurry can be increased by using sodium carboxymethyl cellulose, so that a film is formed on the surface of a soil layer, the wall of the hole is prevented from peeling off, and the effect of reducing water loss is achieved; meanwhile, by using ferrochrome lignin sulfonate sodium salt, the mud performance deteriorated by mixing with soil, sand grains, broken sand, pebbles, salt and the like can be improved, particles such as drill slag and the like can be gathered to accelerate precipitation, and the wall protection mud performance is improved, so that the wall protection mud can be continuously recycled.
2. The formula of the drilling mud and the automatic mud circulation purifying device are characterized in that polyacrylamide flocculant is added into the slurry, so that poor-quality drilling cuttings can be removed in mud circulation, bentonite particles for making the slurry are stored, and the device has the characteristics of low solid phase, low relative density, low water loss, low mineralization and strong thixotropic property of the mud; and fiber substances such as dry sawdust, asbestos and the like are added into the slurry, so that the slurry is effectively prevented from seeping, and the circulating effect of the slurry is improved.
3. This drilling mud formula and automatic mud circulation purifier, when the guide shaft passes through tooth meshing subassembly and drives the revolving plate and rotate, the revolving plate has driven the connecting axle and has carried out circular motion, and rotatory connecting axle pulling L type guide plate is circular motion, at this in-process, the slider of L type guide plate bottom one end just in time slides on the slide bar, thereby the semicircle mounting panel of L type guide plate bottom rotates round the isolation bucket when accomplishing the rotation, from this, the granule adsorption component of semicircle mounting panel bottom has been guaranteed to carry out comprehensive absorption to the mud in the main filter vat, the inside mud liquid purification of main filter vat is filtered incompletely and influence mud circulation work has been avoided.
4. This drilling mud formula and automatic mud circulation purifier, through starting servo motor, servo motor drives incomplete tooth rotation, and incomplete tooth is when rotatory, with the mutual linkage of two rows of internal teeth in linkage inboard, the guide ring has been driven and has been carried out the left and right sides slip in the inboard guide hole of linkage board, at this moment, reciprocating motion's linkage board bottom external tooth has driven the drive tooth and has carried out clockwise rotation, thereby effectively driven the swinging plate and carried out the arc motion, two L type filter plates of its bottom carry out the arc swing, and the mud that enters into the primary filter tank, can be effectively prefiltered by continuous cross L type filter plate, the purification quality of mud has been guaranteed, servo motor has driven the secondary gear rotation of installation axle tip, rotatory secondary gear is through with main gear engagement relation, effectively drive the guide shaft rotation, thereby effectively guaranteed the primary filter of mud and the inside main filter of main filter barrel carry out synchronous operation, mud circulation purification's efficiency has been improved.
5. This drilling mud formula and automatic mud circulation purifier, the torsional spring accessible at through L type filter plate top is flexible elasticity, hits the inner wall of just straining the case to the absorbing problem of just straining incasement wall mud has effectively been avoided.
Drawings
FIG. 1 is a schematic flow chart of a method for preparing a mud material in a drilling mud formulation according to the present invention;
FIG. 2 is a schematic diagram of the front view of an automated mud circulation and purification apparatus for drilling mud according to the present invention;
FIG. 3 is a schematic top view of an automated mud circulation and purification apparatus for drilling mud according to the present invention;
FIG. 4 is a schematic diagram of a front view of a linkage of a circular motion mechanism and an arc-shaped reciprocating mechanism in an automated mud circulation and purification device for drilling mud according to the present invention;
FIG. 5 is a schematic view of the back surface structure of the linkage of the circular motion mechanism and the arc-shaped reciprocating mechanism in an automatic mud circulation and purification device for drilling mud according to the present invention;
fig. 6 is a schematic view of a part of an arc-shaped reciprocating mechanism in an automatic mud circulation and purification device for drilling mud according to the present invention.
In the figure: 1. a bottom barrel; 2. a primary filter box; 3. a feed pipe; 4. a main filter drum; 5. a material guiding pipe; 6. an isolation barrel; 7. a slide bar; 8. a slide block; 9. a semicircular mounting plate; 10. an L-shaped guide plate; 11. a connecting shaft; 12. a rotating plate; 13. a fixing plate; 14. a U-shaped plate; 15. a servo motor; 16. a guide shaft; 17. a main gear; 18. a secondary gear; 19. an L-shaped filter plate; 20. a swinging plate; 21. a linkage plate; 22. internal teeth; 23. a drive tooth; 24. external teeth; 25. a guide hole; 26. incomplete teeth.
Detailed Description
The technical scheme of the patent is further described in detail below with reference to the specific embodiments.
Embodiments of the present patent are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the present patent and are not to be construed as limiting the present patent.
In the description of this patent, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the patent and simplify the description, and do not indicate or imply that the devices or elements being referred to must have a particular orientation, be configured and operated in a particular orientation, and are therefore not to be construed as limiting the patent.
In the description of this patent, it should be noted that, unless explicitly stated and limited otherwise, the terms "mounted," "connected," and "disposed" are to be construed broadly, and may be fixedly connected, disposed, detachably connected, disposed, or integrally connected, disposed, for example. The specific meaning of the terms in this patent will be understood by those of ordinary skill in the art as the case may be.
Example 1:
a drilling mud formulation comprising a conditioned mud raw material, and the conditioned mud raw material comprising the following percentage composition: 1000 parts of clear water, 20 parts of bentonite, 4 parts of polyacrylamide, 4 parts of vegetable gum, 6 parts of potassium humate, 3 parts of carboxymethyl cellulose sodium salt, 3 parts of ferrochrome lignin sulfonate sodium salt, 4 parts of sodium carbonate, 4 parts of barite fine powder, 3 parts of dry sawdust, 4 parts of asbestos and 5 parts of polyacrylamide flocculant.
The calculation formula of the raw material consumption of the modulated slurry is as follows:
M=Vρ 1 =（ρ 2 -ρ 3 ）/（ρ 1 -ρ 2 ）-ρ 1 ；
wherein: m-weight of raw material required for slurry per M (t), V-volume of raw material required for slurry per M (M, M), ρ 1 Density (t/m [ sic ]) ρ 2 -required mud density (t/m #) 2 =Vρ 1 t（1-v）ρ 3 ，ρ 3 -density of water, taking ρ 3 =1t/m³。
As shown in fig. 1, the raw material of the modulated slurry comprises the following steps:
s1: pouring 80% clear water of the volume of a stirring barrel in proportioning stirring equipment, starting proportioning stirring equipment, and sequentially pouring bentonite, polyacrylamide, vegetable gum, potassium humate, carboxymethyl cellulose sodium salt, ferrochrome lignin sodium sulfonate, sodium carbonate, barite fine powder, dry sawdust, asbestos and polyacrylamide flocculant during the period, wherein the stirring time is 40-50 mm;
s2: placing the stirred slurry into a large slurry tank for standby, then, repeating the operation to prepare slurry, and pouring the prepared slurry into the large slurry tank for drilling circulation;
s3: in the repeated slurry preparation process, continuously supplementing fresh slurry into a large slurry pool according to the viscosity change of the on-site slurry;
s4: with the increment of the circulation times of the slurry, replacing the whole large slurry pool according to the interval value of the percentage of the sand content, and reformulating;
s5: in the slurry circulation process, the slurry in the large slurry tank is led into automatic slurry circulation purifying equipment, a slurry outlet is formed on one side of the large slurry tank, a sand sedimentation tank is arranged, and personnel are arranged to clean sand grains and drill cuttings at regular time;
the interval value of the sand content percentage is 2-4%.
By selecting high-quality bentonite, the slurry has the advantages of low relative density, low viscosity, small sand amount, small water loss, thin mud skin, strong stability, strong wall fixing capability, small drilling tool rotation resistance, high drilling rate, large slurry making capability and the like; and the viscosity of slurry can be increased by using sodium carboxymethyl cellulose, so that a film is formed on the surface of a soil layer, the wall of the hole is prevented from peeling off, and the effect of reducing water loss is achieved; meanwhile, by using ferrochrome lignin sulfonate sodium salt, the mud performance deteriorated by mixing with soil, sand grains, broken sand, pebbles, salt and the like can be improved, particles such as drill slag and the like can be gathered to accelerate precipitation, and the wall protection mud performance is improved, so that the wall protection mud can be continuously recycled.
The polyacrylamide flocculant is added into the slurry, so that poor-quality drilling cuttings can be removed in slurry circulation, bentonite particles for pulping can be preserved, and the slurry has the characteristics of low solid phase, low relative density, low water loss, low mineralization and strong thixotropic property of the slurry; and fiber substances such as dry sawdust, asbestos and the like are added into the slurry, so that the slurry is effectively prevented from seeping, and the circulating effect of the slurry is improved.
Example 2:
in order to circularly purify slurry in a large slurry tank, the following improvements are made on the basis of the embodiment 1: as shown in fig. 2-6, the filter comprises a bottom barrel 1, a primary filter box 2 and a main filter barrel 4, wherein the bottom barrel 1 is connected with the bottom of the main filter barrel 4 through threads, the primary filter box 2 is connected with the outer wall of the bottom barrel 1 through bolts, the inner wall of the bottom of the main filter barrel 4 is connected with an isolation barrel 6 through threads, an arc-shaped reciprocating mechanism and a circular motion mechanism are respectively arranged in the bottom barrel 1 and the main filter barrel 4, the swinging end of the arc-shaped reciprocating mechanism is provided with a rotating end of the circular motion mechanism of two L-shaped filter plates 19, and a particle adsorption assembly is arranged at the rotating end of the circular motion mechanism, and the driving ends of the arc-shaped reciprocating mechanism and the circular motion mechanism are connected through tooth engagement assemblies.
The outer wall of one side of the main filter vat 4 is connected with the primary filter tank 2 through a material guiding pipe 5, and the outer wall of one side of the primary filter tank 2 is connected with a material feeding pipe 3 through threads.
The circular motion mechanism comprises a sliding rod 7, a sliding block 8, a semicircular mounting plate 9, an L-shaped guide plate 10, a connecting shaft 11 and a rotating plate 12;
the two ends of the sliding rod 7 are respectively fixed on the inner walls of the two sides of the top of the main filter vat 4 through bolts;
the sliding block 8 is connected to the outer surface of the sliding rod 7 in a sliding manner;
an L-shaped guide plate 10, wherein the L-shaped guide plate 10 is connected to the bottom of the sliding block 8 through a rotating shaft;
a connecting shaft 11, the connecting shaft 11 being connected to the middle of the bottom of the L-shaped guide plate 10 by screw threads;
the semicircular mounting plate 9, the semicircular mounting plate 9 is connected to the bottom of one end of the L-shaped guide plate 10 through threads, and the particle adsorption component is connected with the bottom of the semicircular mounting plate 9 through bolts; the sliding block 8 at one end of the bottom of the L-shaped guide plate 10 can just slide on the sliding rod 7, so that the semicircular mounting plate 9 at the bottom of the L-shaped guide plate 10 rotates around the isolation barrel 6 while rotating.
The rotating plate 12, the rotating plate 12 is connected to the circumference of the bottom of the connecting shaft 11 through threads, one end of the rotating plate 12 is connected with the guide connecting shaft 16 through threads, and the circumference of the guide connecting shaft 16 is fixed with the fixed plate 13 through a bearing; when the guide shaft 16 drives the rotating plate 12 to rotate through the tooth meshing assembly, the rotating plate 12 drives the connecting shaft 11 to perform circular motion, and the rotating connecting shaft 11 pulls the L-shaped guide plate 10 to perform circular motion.
In the process, the particle adsorption component at the bottom of the semicircular mounting plate 9 is guaranteed to comprehensively adsorb the slurry in the main filter vat 4, and the phenomenon that the slurry circulation work is influenced due to incomplete purification and filtration of the slurry in the main filter vat 4 is avoided.
The arc-shaped reciprocating mechanism comprises a U-shaped plate 14, a servo motor 15, a swinging plate 20, a linkage plate 21, internal teeth 22, driving teeth 23, external teeth 24, guide holes 25 and incomplete teeth 26;
the U-shaped plate 14, the U-shaped plate 14 is connected to the bottom outer wall of the fixed plate 13 through bolts;
the servo motor 15 is fixed on the outer wall of one side of the U-shaped plate 14 through a support plate;
incomplete teeth 26, the incomplete teeth 26 are connected to the output end of the servo motor 15 through threads, and the circumference of the output end of the servo motor 15 is provided with a guide ring through threads;
a linkage plate 21, the linkage plate 21 being slidably connected to the circumference of the guide ring through a guide hole 25;
two rows of internal teeth 22, the two rows of internal teeth 22 are welded on the inner walls of the top and bottom of the linkage plate 21, and the incomplete teeth 26 are meshed with the two rows of internal teeth 22; the servo motor 15 is started, the servo motor 15 drives the incomplete teeth 26 to rotate, and when the incomplete teeth 26 rotate, the incomplete teeth are mutually linked with the two rows of internal teeth 22 in the linkage plate 21, so that the guide ring is driven to slide left and right in the guide holes 25 in the inner side of the linkage plate 21.
The output end of the servo motor 15 is connected with a mounting shaft through threads, the swinging plate 20 is connected with the end part of the mounting shaft through threads, two sides of the bottom of the swinging plate 20 are connected with two L-shaped filter plates 19 through torsion springs, the two L-shaped filter plates 19 are arranged in the primary filter box 2, a chute is formed in the outer wall of the top of the primary filter box 2, and the L-shaped filter plates 19 and the chute form sliding fit;
external teeth 24, more than three external teeth 24 are welded on the bottom outer wall of the linkage plate 21;
the driving teeth 23, the driving teeth 23 are connected to the bottom of the U-shaped plate 14 through a rotating rod in a rotating way, and the driving teeth 23 are meshed with the external teeth 24; the external teeth 24 at the bottom of the linkage plate 21 in reciprocating movement drive the driving teeth 23 to rotate clockwise and anticlockwise, so that the swinging plate 20 is effectively driven to perform arc-shaped movement, the two L-shaped filter plates 19 at the bottom of the swinging plate are driven to perform arc-shaped swinging, mud entering the primary filter box 2 is effectively primarily filtered by the L-shaped filter plates 19 which are continuously crossed, in the process, the torsion springs at the tops of the L-shaped filter plates 19 can impact the inner wall of the primary filter box 2 through telescopic elastic force, and accordingly the problem of mud adsorption on the inner wall of the primary filter box 2 is effectively avoided.
When the servo motor 15 drives the secondary gear 18 at the end part of the installation shaft to rotate, the rotating secondary gear 18 effectively drives the guide shaft 16 to rotate through meshing relation with the main gear 17, so that synchronous operation of primary filtration of slurry and main filtration in the main filter vat 4 is effectively ensured, and the efficiency of circulating and purifying the slurry is improved.
The outer wall of the bottom of the guide shaft 16 is connected with a main gear 17 through threads, the end part of the installation shaft is connected with a secondary gear 18 through threads, and the main gear 17 and the secondary gear 18 are meshed with each other.
When the embodiment is used, the incomplete teeth 26 are driven to rotate by the servo motor 15, the rotating incomplete teeth 26 are mutually linked with the two rows of internal teeth 22 in the linkage plate 21, so that a guide ring is driven to slide left and right in a guide hole 25 in the inner side of the linkage plate 21, and external teeth 24 at the bottom of the reciprocating linkage plate 21 drive the driving teeth 23 to rotate clockwise and anticlockwise, so that the swinging plate 20 is promoted to move in an arc shape, and two L-shaped filter plates 19 at the bottom of the swinging plate are driven to swing in an arc shape, so that mud entering the primary filter box 2 is driven;
meanwhile, the servo motor 15 drives the secondary gear 18 at the end part of the mounting shaft to rotate, and the rotating secondary gear 18 drives the guide shaft 16 of the inner ring of the main gear 17 to rotate;
at this time, the guide shaft 16 drives the rotating plate 12 to rotate, the rotating plate 12 drives the connecting shaft 11 to perform circular motion, and then the L-shaped guide plate 10 is pulled to perform circular motion, during this period, the sliding block 8 at one end of the bottom of the L-shaped guide plate 10 just slides on the sliding rod 7, and the semicircular mounting plate 9 at the bottom of the L-shaped guide plate 10 rotates around the isolation barrel 6 while rotating, so that the particle adsorption component at the bottom of the semicircular mounting plate 9 comprehensively adsorbs the particles of the slurry in the main filter barrel 4.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.
Claims (1)
1. The automatic mud circulation purifying device for drilling mud comprises a bottom barrel (1), a primary filter tank (2) and a main filter tank (4), wherein the bottom barrel (1) is connected with the bottom of the main filter tank (4) through threads, the primary filter tank (2) is connected with the outer wall of the bottom barrel (1) through bolts, and the automatic mud circulation purifying device is characterized in that an isolation barrel (6) is arranged on the inner wall of the bottom of the main filter tank (4), an arc-shaped reciprocating mechanism and a circular motion mechanism are respectively arranged in the bottom barrel (1) and the main filter tank (4), the swinging end of the arc-shaped reciprocating mechanism is provided with two rotary ends of the circular motion mechanism of L-shaped filter plates (19), the rotary ends of the arc-shaped reciprocating mechanism and the circular motion mechanism are connected through tooth-meshed components, one side outer wall of the main filter tank (4) is connected with the primary filter tank (2) through a guide pipe (5), and one side outer wall of the primary filter tank (2) is provided with a feed pipe (3);
the circular motion mechanism comprises a sliding rod (7), a sliding block (8), a semicircular mounting plate (9), an L-shaped guide plate (10), a connecting shaft (11) and a rotating plate (12), wherein two ends of the sliding rod (7) are respectively arranged on the inner walls of two sides of the top of the main filter barrel (4), the sliding block (8) is connected onto the outer surface of the sliding rod (7) in a sliding manner, the L-shaped guide plate (10) is connected onto the bottom of the sliding block (8) through a rotating shaft, the connecting shaft (11) is arranged in the middle of the bottom of the L-shaped guide plate (10), the semicircular mounting plate (9) is arranged at one end bottom of the L-shaped guide plate (10), the particle adsorption assembly is connected with the bottom of the semicircular mounting plate (9) through a bolt, the rotating plate (12) is arranged on the circumference of the bottom of the connecting shaft (11), one end of the rotating plate (12) is provided with a guide connecting shaft (16), and the circumference of the guide shaft (16) is fixedly provided with a fixing plate (13) through a bearing;
the arc reciprocating mechanism comprises a U-shaped plate (14), a servo motor (15), a swinging plate (20), a linkage plate (21), internal teeth (22), driving teeth (23), external teeth (24), guide holes (25) and incomplete teeth (26), wherein the U-shaped plate (14) is arranged on the outer wall of the bottom of the fixed plate (13), the servo motor (15) is fixed on one side of the outer wall of the U-shaped plate (14) through a support plate, the incomplete teeth (26) are connected with the output end of the servo motor (15) through threads, the circumference of the output end of the servo motor (15) is connected with a guide ring through threads, the linkage plate (21) is connected on the circumference of the guide ring in a sliding way through the guide holes (25), two rows of internal teeth (22) are welded on the top and the inner wall of the bottom of the linkage plate (21), the incomplete teeth (26) are meshed with the two rows of internal teeth (22) mutually, the driving teeth (23) are connected with the bottom of the U-shaped plate (14) through rotating rods in a rotating way, the output end of the servo motor (15) is provided with a mounting shaft, the swinging plate (20) is arranged at the end of the rotating rod, two sides of the swinging plate (20) are connected with two L-shaped filter plates (19) through two L-shaped filter plates, the two L-shaped filter plates (19) are connected with the two L-shaped filter plates (19) in a sliding groove type, the two-shaped filter boxes are arranged in a primary filter tank (2), the primary filter tank is formed, and the primary filter tank is matched with the top filter tank (2) and the primary filter tank is formed and the primary filter tank and the filter box is arranged in the primary filter tank and the filter box and the filter bed 2, and the filter bed is formed filter bed. More than three external teeth (24) are welded on the outer wall of the bottom of the linkage plate (21), the driving teeth (23) are meshed with the external teeth (24), a main gear (17) is arranged on the outer wall of the bottom of the guide connecting shaft (16), a secondary gear (18) is arranged at the end part of the mounting shaft, and the main gear (17) and the secondary gear (18) are meshed with each other.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210326789.4A CN114687686B (en) | 2022-03-30 | 2022-03-30 | Drilling mud formula and automatic mud circulation purification device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210326789.4A CN114687686B (en) | 2022-03-30 | 2022-03-30 | Drilling mud formula and automatic mud circulation purification device |
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| CN114687686A CN114687686A (en) | 2022-07-01 |
| CN114687686B true CN114687686B (en) | 2024-01-19 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101959829B1 (en) * | 2018-10-25 | 2019-03-19 | 주식회사 칸정공 | Continuous Circulation System |
| CN112963105A (en) * | 2021-02-25 | 2021-06-15 | 邱文兰 | Efficient slurry cleaner applied to drilling fluid purification system |
| CN113482531A (en) * | 2021-08-20 | 2021-10-08 | 北京城建亚泰建设集团有限公司 | Long-distance directional drilling pipeline back-dragging slurry circulation construction process |
| CN215276158U (en) * | 2021-06-17 | 2021-12-24 | 湖州康乐建设有限公司 | Building site mud water treatment recovery unit |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101959829B1 (en) * | 2018-10-25 | 2019-03-19 | 주식회사 칸정공 | Continuous Circulation System |
| CN112963105A (en) * | 2021-02-25 | 2021-06-15 | 邱文兰 | Efficient slurry cleaner applied to drilling fluid purification system |
| CN215276158U (en) * | 2021-06-17 | 2021-12-24 | 湖州康乐建设有限公司 | Building site mud water treatment recovery unit |
| CN113482531A (en) * | 2021-08-20 | 2021-10-08 | 北京城建亚泰建设集团有限公司 | Long-distance directional drilling pipeline back-dragging slurry circulation construction process |
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